Finding the Fourth Proportional to 2,620.17, 3,596.90 and 2,595.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.17 : 3,596.90 = 2,595.57 : x
2. Step 2: Convert to fraction form
   2,620.17/3,596.90 = 2,595.57/x
3. Step 3: Cross multiply
   2,620.17x = 3,596.90 × 2,595.57
4. Step 4: Simplify right side
   2,620.17x = 9,336,005.73
5. Step 5: Solve for x
   x = 9,336,005.73/2,620.17
6. Step 6: Final answer
   x = 3,563.13